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How do I check in SQLite whether a table exists?
How do I, reliably , check in SQLite, whether a particular user table exists?
22 Answers
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how to split the ng-repeat data with three columns using bootstrap
...ays sees the return value as different from the previous. To fix these "unstable" filters, you must wrap the filter in a memoize function. lodash has a memoize function and the latest version of lodash also includes a chunk function, so we can create this filter very simply using npm modules and com...
Error renaming a column in MySQL
How do I rename a column in table xyz ? The columns are:
9 Answers
9
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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...where I was needing to update records in a many to many with a custom join table in a disconnected app. Even with the entity grabbed from the database, I was getting referential errors, etc. I was using "context.Entry(score).State = System.Data.Entity.EntityState.Modified;" but this finally worked...
Automatically create an Enum based on values in a database lookup table?
...and subsequently use its values in C# based on values in a database lookup table (using enterprise library data layer)?
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How can I export the schema of a database in PostgreSQL?
...ed formats
--lock-wait-timeout=TIMEOUT fail after waiting TIMEOUT for a table lock
-?, --help show this help, then exit
Options controlling the output content:
-a, --data-only dump only the data, not the schema
-b, --blobs include large objec...
Remove columns from dataframe where ALL values are NA
... function to reduce the size. The answer bellow using Filter or using data.table will help your memory usage.
– mtelesha
Dec 9 '15 at 15:21
3
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How to remove a column from an existing table?
How to remove a column from an existing table?
11 Answers
11
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Count table rows
What is the MySQL command to retrieve the count of records in a table?
11 Answers
11
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Selecting data from two different servers in SQL Server
...edserver.
You only have to set up one. Once you have that, you can call a table on the other server like so:
select
*
from
LocalTable,
[OtherServerName].[OtherDB].[dbo].[OtherTable]
Note that the owner isn't always dbo, so make sure to replace it with whatever schema you use.
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